The Baby Got Back Padded Shaper is a one piece panty with foam padding built right into the buttocks. It is designed to keep its shape. Just slip it on and you are ready to go. No need for additional inserts etc. Pre shaped, natural looking padded panty is contoured & formed to resemble a realistic round bottom. Features 1 1/2 inch thick foam pads. Highwaist design features a smooth front engineered to flatten the tummy and prevent unsightly love handles and unwanted muffin tops, 90% polyester, 10% spandex.